Privilege escalation in the Graphics: CanvasWebGL component. (CVE-2026-92053)
CVE-2026-92053 is a high-severity privilege escalation vulnerability in the Graphics: CanvasWebGL component of Firefox. This issue allows an attacker to escalate privileges due to incorrect boundary conditions. The vulnerability was fixed in Firefox version 156 and Firefox ESR 153.3.
AI Analysis
Technical Summary
This vulnerability involves privilege escalation in the Graphics: CanvasWebGL component of Firefox, caused by incorrect boundary conditions. It was addressed and fixed in Firefox 156 and Firefox ESR 153.3. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser context, potentially leading to full compromise of the affected process. The impact includes high confidentiality, integrity, and availability impacts as per the CVSS score.
Mitigation Recommendations
A fix is available and users should update to Firefox 156 or later, or Firefox ESR 153.3 or later to remediate this vulnerability. No additional mitigation steps are required beyond applying the official update.
Privilege escalation in the Graphics: CanvasWebGL component. (CVE-2026-92053)
Description
CVE-2026-92053 is a high-severity privilege escalation vulnerability in the Graphics: CanvasWebGL component of Firefox. This issue allows an attacker to escalate privileges due to incorrect boundary conditions. The vulnerability was fixed in Firefox version 156 and Firefox ESR 153.3.
CVSS v3.1
Score 8.8high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves privilege escalation in the Graphics: CanvasWebGL component of Firefox, caused by incorrect boundary conditions. It was addressed and fixed in Firefox 156 and Firefox ESR 153.3. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser context, potentially leading to full compromise of the affected process. The impact includes high confidentiality, integrity, and availability impacts as per the CVSS score.
Mitigation Recommendations
A fix is available and users should update to Firefox 156 or later, or Firefox ESR 153.3 or later to remediate this vulnerability. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-37cw-cqwm-6j7q
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-92053"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa080e55bf5e2cf5ea4828
Added to database: 09/16/2026, 03:07:58 UTC
Last enriched: 09/16/2026, 03:17:12 UTC
Last updated: 09/16/2026, 04:01:24 UTC
Views: 2
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